Would they need BTC? With 1.3 billion potential users wouldn't that be enough?
There is vast difference between coin created by government and bitcoin, all government issued coin (if they will issue one in future) will be centralized and will be in full control of the government which is just like virtual bank balance we have right now so pretty much useless.
Bitcoin is decentralized, anonymous, limited and self sustaining that's why it is most valuable coin out there.
Yes, decentralization is the key feature af almost all cryptocurrencies from the fiat! But could we tell nowadays that Bitcoin is so decentralized and is not under control of some groups of people, which
unires in mining pools?
Also I coud not imagine that bitcoin will be the widespread payment currency in the furture, because of all issues with its low speed transactions and high rate fees!
But it iss still very valuable in our minds because this is the coin than creates blockchain!